
(function (f) { if (typeof exports === "object" && typeof module !== "undefined") { module.exports = f() } else if (typeof define === "function" && define.amd) { define([], f) } else { var g; if (typeof window !== "undefined") { g = window } else if (typeof global !== "undefined") { g = global } else if (typeof self !== "undefined") { g = self } else { g = this } g.Qs = f() } })(function () {
    var define, module, exports; return (function () { function r(e, n, t) { function o(i, f) { if (!n[i]) { if (!e[i]) { var c = "function" == typeof require && require; if (!f && c) return c(i, !0); if (u) return u(i, !0); var a = new Error("Cannot find module '" + i + "'"); throw a.code = "MODULE_NOT_FOUND", a } var p = n[i] = { exports: {} }; e[i][0].call(p.exports, function (r) { var n = e[i][1][r]; return o(n || r) }, p, p.exports, r, e, n, t) } return n[i].exports } for (var u = "function" == typeof require && require, i = 0; i < t.length; i++)o(t[i]); return o } return r })()({
        1: [function (require, module, exports) {
            'use strict';

            var replace = String.prototype.replace;
            var percentTwenties = /%20/g;

            var util = require('./utils');

            var Format = {
                RFC1738: 'RFC1738',
                RFC3986: 'RFC3986'
            };

            module.exports = util.assign(
                {
                    'default': Format.RFC3986,
                    formatters: {
                        RFC1738: function (value) {
                            return replace.call(value, percentTwenties, '+');
                        },
                        RFC3986: function (value) {
                            return String(value);
                        }
                    }
                },
                Format
            );

        }, { "./utils": 5 }], 2: [function (require, module, exports) {
            'use strict';

            var stringify = require('./stringify');
            var parse = require('./parse');
            var formats = require('./formats');

            module.exports = {
                formats: formats,
                parse: parse,
                stringify: stringify
            };

        }, { "./formats": 1, "./parse": 3, "./stringify": 4 }], 3: [function (require, module, exports) {
            'use strict';

            var utils = require('./utils');

            var has = Object.prototype.hasOwnProperty;
            var isArray = Array.isArray;

            var defaults = {
                allowDots: false,
                allowPrototypes: false,
                arrayLimit: 20,
                charset: 'utf-8',
                charsetSentinel: false,
                comma: false,
                decoder: utils.decode,
                delimiter: '&',
                depth: 5,
                ignoreQueryPrefix: false,
                interpretNumericEntities: false,
                parameterLimit: 1000,
                parseArrays: true,
                plainObjects: false,
                strictNullHandling: false
            };

            var interpretNumericEntities = function (str) {
                return str.replace(/&#(\d+);/g, function ($0, numberStr) {
                    return String.fromCharCode(parseInt(numberStr, 10));
                });
            };

            var parseArrayValue = function (val, options) {
                if (val && typeof val === 'string' && options.comma && val.indexOf(',') > -1) {
                    return val.split(',');
                }

                return val;
            };

            // This is what browsers will submit when the ✓ character occurs in an
            // application/x-www-form-urlencoded body and the encoding of the page containing
            // the form is iso-8859-1, or when the submitted form has an accept-charset
            // attribute of iso-8859-1. Presumably also with other charsets that do not contain
            // the ✓ character, such as us-ascii.
            var isoSentinel = 'utf8=%26%2310003%3B'; // encodeURIComponent('&#10003;')

            // These are the percent-encoded utf-8 octets representing a checkmark, indicating that the request actually is utf-8 encoded.
            var charsetSentinel = 'utf8=%E2%9C%93'; // encodeURIComponent('✓')

            var parseValues = function parseQueryStringValues(str, options) {
                var obj = {};
                var cleanStr = options.ignoreQueryPrefix ? str.replace(/^\?/, '') : str;
                var limit = options.parameterLimit === Infinity ? undefined : options.parameterLimit;
                var parts = cleanStr.split(options.delimiter, limit);
                var skipIndex = -1; // Keep track of where the utf8 sentinel was found
                var i;

                var charset = options.charset;
                if (options.charsetSentinel) {
                    for (i = 0; i < parts.length; ++i) {
                        if (parts[i].indexOf('utf8=') === 0) {
                            if (parts[i] === charsetSentinel) {
                                charset = 'utf-8';
                            } else if (parts[i] === isoSentinel) {
                                charset = 'iso-8859-1';
                            }
                            skipIndex = i;
                            i = parts.length; // The eslint settings do not allow break;
                        }
                    }
                }

                for (i = 0; i < parts.length; ++i) {
                    if (i === skipIndex) {
                        continue;
                    }
                    var part = parts[i];

                    var bracketEqualsPos = part.indexOf(']=');
                    var pos = bracketEqualsPos === -1 ? part.indexOf('=') : bracketEqualsPos + 1;

                    var key, val;
                    if (pos === -1) {
                        key = options.decoder(part, defaults.decoder, charset, 'key');
                        val = options.strictNullHandling ? null : '';
                    } else {
                        key = options.decoder(part.slice(0, pos), defaults.decoder, charset, 'key');
                        val = utils.maybeMap(
                            parseArrayValue(part.slice(pos + 1), options),
                            function (encodedVal) {
                                return options.decoder(encodedVal, defaults.decoder, charset, 'value');
                            }
                        );
                    }

                    if (val && options.interpretNumericEntities && charset === 'iso-8859-1') {
                        val = interpretNumericEntities(val);
                    }

                    if (part.indexOf('[]=') > -1) {
                        val = isArray(val) ? [val] : val;
                    }

                    if (has.call(obj, key)) {
                        obj[key] = utils.combine(obj[key], val);
                    } else {
                        obj[key] = val;
                    }
                }

                return obj;
            };

            var parseObject = function (chain, val, options, valuesParsed) {
                var leaf = valuesParsed ? val : parseArrayValue(val, options);

                for (var i = chain.length - 1; i >= 0; --i) {
                    var obj;
                    var root = chain[i];

                    if (root === '[]' && options.parseArrays) {
                        obj = [].concat(leaf);
                    } else {
                        obj = options.plainObjects ? Object.create(null) : {};
                        var cleanRoot = root.charAt(0) === '[' && root.charAt(root.length - 1) === ']' ? root.slice(1, -1) : root;
                        var index = parseInt(cleanRoot, 10);
                        if (!options.parseArrays && cleanRoot === '') {
                            obj = { 0: leaf };
                        } else if (
                            !isNaN(index)
                            && root !== cleanRoot
                            && String(index) === cleanRoot
                            && index >= 0
                            && (options.parseArrays && index <= options.arrayLimit)
                        ) {
                            obj = [];
                            obj[index] = leaf;
                        } else {
                            obj[cleanRoot] = leaf;
                        }
                    }

                    leaf = obj; // eslint-disable-line no-param-reassign
                }

                return leaf;
            };

            var parseKeys = function parseQueryStringKeys(givenKey, val, options, valuesParsed) {
                if (!givenKey) {
                    return;
                }

                // Transform dot notation to bracket notation
                var key = options.allowDots ? givenKey.replace(/\.([^.[]+)/g, '[$1]') : givenKey;

                // The regex chunks

                var brackets = /(\[[^[\]]*])/;
                var child = /(\[[^[\]]*])/g;

                // Get the parent

                var segment = options.depth > 0 && brackets.exec(key);
                var parent = segment ? key.slice(0, segment.index) : key;

                // Stash the parent if it exists

                var keys = [];
                if (parent) {
                    // If we aren't using plain objects, optionally prefix keys that would overwrite object prototype properties
                    if (!options.plainObjects && has.call(Object.prototype, parent)) {
                        if (!options.allowPrototypes) {
                            return;
                        }
                    }

                    keys.push(parent);
                }

                // Loop through children appending to the array until we hit depth

                var i = 0;
                while (options.depth > 0 && (segment = child.exec(key)) !== null && i < options.depth) {
                    i += 1;
                    if (!options.plainObjects && has.call(Object.prototype, segment[1].slice(1, -1))) {
                        if (!options.allowPrototypes) {
                            return;
                        }
                    }
                    keys.push(segment[1]);
                }

                // If there's a remainder, just add whatever is left

                if (segment) {
                    keys.push('[' + key.slice(segment.index) + ']');
                }

                return parseObject(keys, val, options, valuesParsed);
            };

            var normalizeParseOptions = function normalizeParseOptions(opts) {
                if (!opts) {
                    return defaults;
                }

                if (opts.decoder !== null && opts.decoder !== undefined && typeof opts.decoder !== 'function') {
                    throw new TypeError('Decoder has to be a function.');
                }

                if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') {
                    throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined');
                }
                var charset = typeof opts.charset === 'undefined' ? defaults.charset : opts.charset;

                return {
                    allowDots: typeof opts.allowDots === 'undefined' ? defaults.allowDots : !!opts.allowDots,
                    allowPrototypes: typeof opts.allowPrototypes === 'boolean' ? opts.allowPrototypes : defaults.allowPrototypes,
                    arrayLimit: typeof opts.arrayLimit === 'number' ? opts.arrayLimit : defaults.arrayLimit,
                    charset: charset,
                    charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel,
                    comma: typeof opts.comma === 'boolean' ? opts.comma : defaults.comma,
                    decoder: typeof opts.decoder === 'function' ? opts.decoder : defaults.decoder,
                    delimiter: typeof opts.delimiter === 'string' || utils.isRegExp(opts.delimiter) ? opts.delimiter : defaults.delimiter,
                    // eslint-disable-next-line no-implicit-coercion, no-extra-parens
                    depth: (typeof opts.depth === 'number' || opts.depth === false) ? +opts.depth : defaults.depth,
                    ignoreQueryPrefix: opts.ignoreQueryPrefix === true,
                    interpretNumericEntities: typeof opts.interpretNumericEntities === 'boolean' ? opts.interpretNumericEntities : defaults.interpretNumericEntities,
                    parameterLimit: typeof opts.parameterLimit === 'number' ? opts.parameterLimit : defaults.parameterLimit,
                    parseArrays: opts.parseArrays !== false,
                    plainObjects: typeof opts.plainObjects === 'boolean' ? opts.plainObjects : defaults.plainObjects,
                    strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling
                };
            };

            module.exports = function (str, opts) {
                var options = normalizeParseOptions(opts);

                if (str === '' || str === null || typeof str === 'undefined') {
                    return options.plainObjects ? Object.create(null) : {};
                }

                var tempObj = typeof str === 'string' ? parseValues(str, options) : str;
                var obj = options.plainObjects ? Object.create(null) : {};

                // Iterate over the keys and setup the new object

                var keys = Object.keys(tempObj);
                for (var i = 0; i < keys.length; ++i) {
                    var key = keys[i];
                    var newObj = parseKeys(key, tempObj[key], options, typeof str === 'string');
                    obj = utils.merge(obj, newObj, options);
                }

                return utils.compact(obj);
            };

        }, { "./utils": 5 }], 4: [function (require, module, exports) {
            'use strict';

            var utils = require('./utils');
            var formats = require('./formats');
            var has = Object.prototype.hasOwnProperty;

            var arrayPrefixGenerators = {
                brackets: function brackets(prefix) {
                    return prefix + '[]';
                },
                comma: 'comma',
                indices: function indices(prefix, key) {
                    return prefix + '[' + key + ']';
                },
                repeat: function repeat(prefix) {
                    return prefix;
                }
            };

            var isArray = Array.isArray;
            var push = Array.prototype.push;
            var pushToArray = function (arr, valueOrArray) {
                push.apply(arr, isArray(valueOrArray) ? valueOrArray : [valueOrArray]);
            };

            var toISO = Date.prototype.toISOString;

            var defaultFormat = formats['default'];
            var defaults = {
                addQueryPrefix: false,
                allowDots: false,
                charset: 'utf-8',
                charsetSentinel: false,
                delimiter: '&',
                encode: true,
                encoder: utils.encode,
                encodeValuesOnly: false,
                format: defaultFormat,
                formatter: formats.formatters[defaultFormat],
                // deprecated
                indices: false,
                serializeDate: function serializeDate(date) {
                    return toISO.call(date);
                },
                skipNulls: false,
                strictNullHandling: false
            };

            var isNonNullishPrimitive = function isNonNullishPrimitive(v) {
                return typeof v === 'string'
                    || typeof v === 'number'
                    || typeof v === 'boolean'
                    || typeof v === 'symbol'
                    || typeof v === 'bigint';
            };

            var stringify = function stringify(
                object,
                prefix,
                generateArrayPrefix,
                strictNullHandling,
                skipNulls,
                encoder,
                filter,
                sort,
                allowDots,
                serializeDate,
                formatter,
                encodeValuesOnly,
                charset
            ) {
                var obj = object;
                if (typeof filter === 'function') {
                    obj = filter(prefix, obj);
                } else if (obj instanceof Date) {
                    obj = serializeDate(obj);
                } else if (generateArrayPrefix === 'comma' && isArray(obj)) {
                    obj = utils.maybeMap(obj, function (value) {
                        if (value instanceof Date) {
                            return serializeDate(value);
                        }
                        return value;
                    }).join(',');
                }

                if (obj === null) {
                    if (strictNullHandling) {
                        return encoder && !encodeValuesOnly ? encoder(prefix, defaults.encoder, charset, 'key') : prefix;
                    }

                    obj = '';
                }

                if (isNonNullishPrimitive(obj) || utils.isBuffer(obj)) {
                    if (encoder) {
                        var keyValue = encodeValuesOnly ? prefix : encoder(prefix, defaults.encoder, charset, 'key');
                        return [formatter(keyValue) + '=' + formatter(encoder(obj, defaults.encoder, charset, 'value'))];
                    }
                    return [formatter(prefix) + '=' + formatter(String(obj))];
                }

                var values = [];

                if (typeof obj === 'undefined') {
                    return values;
                }

                var objKeys;
                if (isArray(filter)) {
                    objKeys = filter;
                } else {
                    var keys = Object.keys(obj);
                    objKeys = sort ? keys.sort(sort) : keys;
                }

                for (var i = 0; i < objKeys.length; ++i) {
                    var key = objKeys[i];
                    var value = obj[key];

                    if (skipNulls && value === null) {
                        continue;
                    }

                    var keyPrefix = isArray(obj)
                        ? typeof generateArrayPrefix === 'function' ? generateArrayPrefix(prefix, key) : prefix
                        : prefix + (allowDots ? '.' + key : '[' + key + ']');

                    pushToArray(values, stringify(
                        value,
                        keyPrefix,
                        generateArrayPrefix,
                        strictNullHandling,
                        skipNulls,
                        encoder,
                        filter,
                        sort,
                        allowDots,
                        serializeDate,
                        formatter,
                        encodeValuesOnly,
                        charset
                    ));
                }

                return values;
            };

            var normalizeStringifyOptions = function normalizeStringifyOptions(opts) {
                if (!opts) {
                    return defaults;
                }

                if (opts.encoder !== null && opts.encoder !== undefined && typeof opts.encoder !== 'function') {
                    throw new TypeError('Encoder has to be a function.');
                }

                var charset = opts.charset || defaults.charset;
                if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') {
                    throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined');
                }

                var format = formats['default'];
                if (typeof opts.format !== 'undefined') {
                    if (!has.call(formats.formatters, opts.format)) {
                        throw new TypeError('Unknown format option provided.');
                    }
                    format = opts.format;
                }
                var formatter = formats.formatters[format];

                var filter = defaults.filter;
                if (typeof opts.filter === 'function' || isArray(opts.filter)) {
                    filter = opts.filter;
                }

                return {
                    addQueryPrefix: typeof opts.addQueryPrefix === 'boolean' ? opts.addQueryPrefix : defaults.addQueryPrefix,
                    allowDots: typeof opts.allowDots === 'undefined' ? defaults.allowDots : !!opts.allowDots,
                    charset: charset,
                    charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel,
                    delimiter: typeof opts.delimiter === 'undefined' ? defaults.delimiter : opts.delimiter,
                    encode: typeof opts.encode === 'boolean' ? opts.encode : defaults.encode,
                    encoder: typeof opts.encoder === 'function' ? opts.encoder : defaults.encoder,
                    encodeValuesOnly: typeof opts.encodeValuesOnly === 'boolean' ? opts.encodeValuesOnly : defaults.encodeValuesOnly,
                    filter: filter,
                    formatter: formatter,
                    serializeDate: typeof opts.serializeDate === 'function' ? opts.serializeDate : defaults.serializeDate,
                    skipNulls: typeof opts.skipNulls === 'boolean' ? opts.skipNulls : defaults.skipNulls,
                    sort: typeof opts.sort === 'function' ? opts.sort : null,
                    strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling
                };
            };

            module.exports = function (object, opts) {
                var obj = object;
                var options = normalizeStringifyOptions(opts);

                var objKeys;
                var filter;

                if (typeof options.filter === 'function') {
                    filter = options.filter;
                    obj = filter('', obj);
                } else if (isArray(options.filter)) {
                    filter = options.filter;
                    objKeys = filter;
                }

                var keys = [];

                if (typeof obj !== 'object' || obj === null) {
                    return '';
                }

                var arrayFormat;
                if (opts && opts.arrayFormat in arrayPrefixGenerators) {
                    arrayFormat = opts.arrayFormat;
                } else if (opts && 'indices' in opts) {
                    arrayFormat = opts.indices ? 'indices' : 'repeat';
                } else {
                    arrayFormat = 'indices';
                }

                var generateArrayPrefix = arrayPrefixGenerators[arrayFormat];

                if (!objKeys) {
                    objKeys = Object.keys(obj);
                }

                if (options.sort) {
                    objKeys.sort(options.sort);
                }

                for (var i = 0; i < objKeys.length; ++i) {
                    var key = objKeys[i];

                    if (options.skipNulls && obj[key] === null) {
                        continue;
                    }
                    pushToArray(keys, stringify(
                        obj[key],
                        key,
                        generateArrayPrefix,
                        options.strictNullHandling,
                        options.skipNulls,
                        options.encode ? options.encoder : null,
                        options.filter,
                        options.sort,
                        options.allowDots,
                        options.serializeDate,
                        options.formatter,
                        options.encodeValuesOnly,
                        options.charset
                    ));
                }

                var joined = keys.join(options.delimiter);
                var prefix = options.addQueryPrefix === true ? '?' : '';

                if (options.charsetSentinel) {
                    if (options.charset === 'iso-8859-1') {
                        // encodeURIComponent('&#10003;'), the "numeric entity" representation of a checkmark
                        prefix += 'utf8=%26%2310003%3B&';
                    } else {
                        // encodeURIComponent('✓')
                        prefix += 'utf8=%E2%9C%93&';
                    }
                }

                return joined.length > 0 ? prefix + joined : '';
            };

        }, { "./formats": 1, "./utils": 5 }], 5: [function (require, module, exports) {
            'use strict';

            var has = Object.prototype.hasOwnProperty;
            var isArray = Array.isArray;

            var hexTable = (function () {
                var array = [];
                for (var i = 0; i < 256; ++i) {
                    array.push('%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase());
                }

                return array;
            }());

            var compactQueue = function compactQueue(queue) {
                while (queue.length > 1) {
                    var item = queue.pop();
                    var obj = item.obj[item.prop];

                    if (isArray(obj)) {
                        var compacted = [];

                        for (var j = 0; j < obj.length; ++j) {
                            if (typeof obj[j] !== 'undefined') {
                                compacted.push(obj[j]);
                            }
                        }

                        item.obj[item.prop] = compacted;
                    }
                }
            };

            var arrayToObject = function arrayToObject(source, options) {
                var obj = options && options.plainObjects ? Object.create(null) : {};
                for (var i = 0; i < source.length; ++i) {
                    if (typeof source[i] !== 'undefined') {
                        obj[i] = source[i];
                    }
                }

                return obj;
            };

            var merge = function merge(target, source, options) {
                /* eslint no-param-reassign: 0 */
                if (!source) {
                    return target;
                }

                if (typeof source !== 'object') {
                    if (isArray(target)) {
                        target.push(source);
                    } else if (target && typeof target === 'object') {
                        if ((options && (options.plainObjects || options.allowPrototypes)) || !has.call(Object.prototype, source)) {
                            target[source] = true;
                        }
                    } else {
                        return [target, source];
                    }

                    return target;
                }

                if (!target || typeof target !== 'object') {
                    return [target].concat(source);
                }

                var mergeTarget = target;
                if (isArray(target) && !isArray(source)) {
                    mergeTarget = arrayToObject(target, options);
                }

                if (isArray(target) && isArray(source)) {
                    source.forEach(function (item, i) {
                        if (has.call(target, i)) {
                            var targetItem = target[i];
                            if (targetItem && typeof targetItem === 'object' && item && typeof item === 'object') {
                                target[i] = merge(targetItem, item, options);
                            } else {
                                target.push(item);
                            }
                        } else {
                            target[i] = item;
                        }
                    });
                    return target;
                }

                return Object.keys(source).reduce(function (acc, key) {
                    var value = source[key];

                    if (has.call(acc, key)) {
                        acc[key] = merge(acc[key], value, options);
                    } else {
                        acc[key] = value;
                    }
                    return acc;
                }, mergeTarget);
            };

            var assign = function assignSingleSource(target, source) {
                return Object.keys(source).reduce(function (acc, key) {
                    acc[key] = source[key];
                    return acc;
                }, target);
            };

            var decode = function (str, decoder, charset) {
                var strWithoutPlus = str.replace(/\+/g, ' ');
                if (charset === 'iso-8859-1') {
                    // unescape never throws, no try...catch needed:
                    return strWithoutPlus.replace(/%[0-9a-f]{2}/gi, unescape);
                }
                // utf-8
                try {
                    return decodeURIComponent(strWithoutPlus);
                } catch (e) {
                    return strWithoutPlus;
                }
            };

            var encode = function encode(str, defaultEncoder, charset) {
                // This code was originally written by Brian White (mscdex) for the io.js core querystring library.
                // It has been adapted here for stricter adherence to RFC 3986
                if (str.length === 0) {
                    return str;
                }

                var string = str;
                if (typeof str === 'symbol') {
                    string = Symbol.prototype.toString.call(str);
                } else if (typeof str !== 'string') {
                    string = String(str);
                }

                if (charset === 'iso-8859-1') {
                    return escape(string).replace(/%u[0-9a-f]{4}/gi, function ($0) {
                        return '%26%23' + parseInt($0.slice(2), 16) + '%3B';
                    });
                }

                var out = '';
                for (var i = 0; i < string.length; ++i) {
                    var c = string.charCodeAt(i);

                    if (
                        c === 0x2D // -
                        || c === 0x2E // .
                        || c === 0x5F // _
                        || c === 0x7E // ~
                        || (c >= 0x30 && c <= 0x39) // 0-9
                        || (c >= 0x41 && c <= 0x5A) // a-z
                        || (c >= 0x61 && c <= 0x7A) // A-Z
                    ) {
                        out += string.charAt(i);
                        continue;
                    }

                    if (c < 0x80) {
                        out = out + hexTable[c];
                        continue;
                    }

                    if (c < 0x800) {
                        out = out + (hexTable[0xC0 | (c >> 6)] + hexTable[0x80 | (c & 0x3F)]);
                        continue;
                    }

                    if (c < 0xD800 || c >= 0xE000) {
                        out = out + (hexTable[0xE0 | (c >> 12)] + hexTable[0x80 | ((c >> 6) & 0x3F)] + hexTable[0x80 | (c & 0x3F)]);
                        continue;
                    }

                    i += 1;
                    c = 0x10000 + (((c & 0x3FF) << 10) | (string.charCodeAt(i) & 0x3FF));
                    out += hexTable[0xF0 | (c >> 18)]
                        + hexTable[0x80 | ((c >> 12) & 0x3F)]
                        + hexTable[0x80 | ((c >> 6) & 0x3F)]
                        + hexTable[0x80 | (c & 0x3F)];
                }

                return out;
            };

            var compact = function compact(value) {
                var queue = [{ obj: { o: value }, prop: 'o' }];
                var refs = [];

                for (var i = 0; i < queue.length; ++i) {
                    var item = queue[i];
                    var obj = item.obj[item.prop];

                    var keys = Object.keys(obj);
                    for (var j = 0; j < keys.length; ++j) {
                        var key = keys[j];
                        var val = obj[key];
                        if (typeof val === 'object' && val !== null && refs.indexOf(val) === -1) {
                            queue.push({ obj: obj, prop: key });
                            refs.push(val);
                        }
                    }
                }

                compactQueue(queue);

                return value;
            };

            var isRegExp = function isRegExp(obj) {
                return Object.prototype.toString.call(obj) === '[object RegExp]';
            };

            var isBuffer = function isBuffer(obj) {
                if (!obj || typeof obj !== 'object') {
                    return false;
                }

                return !!(obj.constructor && obj.constructor.isBuffer && obj.constructor.isBuffer(obj));
            };

            var combine = function combine(a, b) {
                return [].concat(a, b);
            };

            var maybeMap = function maybeMap(val, fn) {
                if (isArray(val)) {
                    var mapped = [];
                    for (var i = 0; i < val.length; i += 1) {
                        mapped.push(fn(val[i]));
                    }
                    return mapped;
                }
                return fn(val);
            };

            module.exports = {
                arrayToObject: arrayToObject,
                assign: assign,
                combine: combine,
                compact: compact,
                decode: decode,
                encode: encode,
                isBuffer: isBuffer,
                isRegExp: isRegExp,
                maybeMap: maybeMap,
                merge: merge
            };

        }, {}]
    }, {}, [2])(2)
});